NekoCWD/libcamera
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libcamera: Add debug printouts

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Add a few debug printouts that help follow the library intialization
process: what pipeline handlers are registered, what media devices are
created, and which pipeline manager gets matches with the current
system.

The resulting output is the following, on IPU3 devices:
DBG pipeline_handler.cpp:119 Pipeline handler: "PipeHandlerVimc" registered
DBG pipeline_handler.cpp:119 Pipeline handler: "PipelineHandlerIPU3" registered
DBG device_enumerator.cpp:214 New media device: ipu3-imgu created from: /dev/media0
DBG device_enumerator.cpp:214 New media device: ipu3-cio2 created from: /dev/media1
DBG device_enumerator.cpp:255 Succesfull match for media device: ipu3-cio2
DBG device_enumerator.cpp:255 Succesfull match for media device: ipu3-imgu
DBG pipeline_handler.cpp:150 Pipeline handler: "PipelineHandlerIPU3" matched

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi 2019-01-11 17:04:27 +01:00
parent bced32d514
commit fd0339da1a
2 changed files with 11 additions and 2 deletions
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8
src/libcamera/device_enumerator.cpp
View file

@ -211,6 +211,9 @@ int DeviceEnumerator::addDevice(const std::string &devnode)
return ret; return ret;
} }
LOG(Debug) << "New media device \"" << media->driver()
<< "\" created from " << devnode;
/* Associate entities to device node paths. */ /* Associate entities to device node paths. */
for (MediaEntity *entity : media->entities()) { for (MediaEntity *entity : media->entities()) {
if (entity->deviceMajor() == 0 && entity->deviceMinor() == 0) if (entity->deviceMajor() == 0 && entity->deviceMinor() == 0)
@ -248,9 +251,12 @@ MediaDevice *DeviceEnumerator::search(const DeviceMatch &dm) const
if (dev->busy()) if (dev->busy())
continue; continue;
if (dm.match(dev)) if (dm.match(dev)) {
LOG(Debug) << "Successful match for media device "
<< dev->driver();
return dev; return dev;
} }
}
return nullptr; return nullptr;
} }

5
src/libcamera/pipeline_handler.cpp
View file

@ -116,6 +116,7 @@ void PipelineHandlerFactory::registerType(const std::string &name,
return; return;
} }
LOG(Debug) << "Registered pipeline handler: \"" << name << "\"";
factories[name] = factory; factories[name] = factory;
} }
@ -145,8 +146,10 @@ PipelineHandler *PipelineHandlerFactory::create(const std::string &name,
PipelineHandler *pipe = it->second->create(); PipelineHandler *pipe = it->second->create();
if (pipe->match(enumerator)) if (pipe->match(enumerator)) {
LOG(Debug) << "Pipeline handler \"" << name << "\" matched";
return pipe; return pipe;
}
delete pipe; delete pipe;
return nullptr; return nullptr;